Princess Lingyue of the Undersea Water Spirit Palace was condemned by the Emperor of Heaven for letting her fairy aunt who was imprisoned in the traceless sea without permission. She didn't understand why her fairy aunt eloped for a mere mortal, and she didn't want to understand, just because she didn't want her aunt to be tortured. A moment of soft-heartedness, a trick of fate, saved the person he shouldn't have saved, but he fell deeply in love ever since.